Butt welding short pipe saddle joint

Abstract

The utility model relates to a butt welding short pipe saddle joint which is composed of a plurality of pipe bodies with different outer diameters, inner cavities of the pipe bodies are provided with inner holes communicated with one another, and the saddle joint sequentially comprises a first pipe body, a second pipe body, a third pipe body and a connecting end from top to bottom. The outer diameter of the first pipe body is smaller than that of the second pipe body; a first conical surface is arranged between the first pipe body and the second pipe body; the outer diameter of the second pipe body is smaller than that of the third pipe body; a second conical surface is arranged between the second pipe body and the third pipe body; an inner conical surface and an outer conical surface are arranged on the inner side and the outer side of the connecting end respectively, the inner conical surface is connected with the inner hole, and a through type arc-shaped concave surface matched with an external pipeline is arranged at a port of the connecting end. The connecting port is provided with the through arc-shaped concave surface matched with the external pipeline, so that the saddle joint is tightly matched with the external pipeline, and the mounting precision is improved; the saddle joint adopts a butt welding short pipe connection mode, so that the saddle joint is firm in connection, good in sealing effect, convenient to install and construct, and particularly suitable for pipelines with larger calibers.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline joints, in particular to a butt-welded short-pipe saddle joint. Background Art

[0002] Traditional pipelines use welded pipe joints, which are more flexible in terms of the specifications of the steel pipes. After being welded with the pipelines, they have the characteristics of reliable connection and good sealing performance. Welded pipe joints are suitable for non-corrosive or corrosive media such as oil, water, and gas.

[0003] Saddle joint, also known as saddle pipe joint, is a special fitting for pipe connection. It connects two sections of pipe through a saddle-shaped bracket to achieve the effect of pipe connection. Saddle joints are generally divided into two types: stable saddle joints and adjustable saddle joints. Saddle joints are shockproof, highly adjustable and widely applicable. Due to the special structural design of the saddle joint, it has a certain buffering and shock-absorbing effect, making the pipe connection more stable and firm; the saddle joint can easily adjust the angle and height of the connected pipe, and has greater flexibility; the saddle joint is suitable for pipe connections of various materials and specifications, and can meet various different needs.

[0004] When connecting pipes of different diameters, the saddle joint and the pipe are generally connected by threads. In order to prevent leakage and enhance the sealing effect, a sealing ring needs to be installed. The traditional saddle joint not only has a complex production process, but also has high requirements for connection with the pipe, resulting in greater difficulty in installation and construction. Utility Model Content

[0005] The utility model aims to provide a butt-welded short-pipe saddle joint, which connects a pipeline with the saddle joint by butt-welding, and has good sealing effect, firm connection and convenient installation and construction.

[0006] The purpose of this utility model is achieved by adopting the following technical solutions:

[0007] The butt-welded short-tube saddle joint is composed of a plurality of tube bodies with different outer diameters, the inner cavities of the tube bodies are provided with inner holes that are interconnected, and the saddle joint is composed of a first tube body, a second tube body, a third tube body and a connecting end from top to bottom;

[0008] The outer diameter of the first tube body is smaller than that of the second tube body, and a first conical surface is provided between the first tube body and the second tube body;

[0009] The outer diameter of the second tube body is smaller than that of the third tube body, and a second conical surface is provided between the second tube body and the third tube body;

[0010] The inner and outer sides of the connection end are respectively provided with an inner conical surface and an outer conical surface, the inner conical surface is connected to the inner hole, and the port of the connection end is provided with a penetrating arc-shaped concave surface matching the external pipe.

[0011] As a preferred technical solution of the utility model, a right-angle countersunk hole structure is provided between the port of the connecting end and the inner conical surface.

[0012] As a preferred technical solution of the utility model, the outer conical surface of the connecting end is composed of a third conical surface and a fourth conical surface which are connected to each other.

[0013] As a preferred technical solution of the present utility model, the angles of the third cone surface and the fourth cone surface are different.

[0014] As a preferred technical solution of the present utility model, the angle between the fourth conical surface and the horizontal plane is 30-45 degrees.

[0015] As a preferred technical solution of the present utility model, the wall thickness of the arc-shaped concave surface of the connecting end is 1.5-5.0 mm.

[0016] Beneficial effects of the utility model: Compared with the prior art, the inner and outer sides of the connection end of the utility model are respectively provided with an inner cone and an outer cone, and the connection port is provided with a through-type arc-shaped concave surface matching the external pipe, so that the saddle joint and the external pipe are closely matched, thereby improving the installation accuracy. The utility model saddle joint adopts a butt-welding short pipe connection method, which is not only firmly connected and has a good sealing effect, but also easy to install and construct, and is particularly suitable for pipes with larger diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure viewed from above without external pipes.

[0019] In the figure: 1. first tube body, 2. second tube body, 3. third tube body, 4. first conical surface, 5. second conical surface, 6. countersunk hole structure, 7. third conical surface, 8. fourth conical surface, 9. connecting end, 10. external pipe, 11. inner hole. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0021] like Figure 1 and Figure 2As shown, the butt-welded short-tube saddle joint is composed of a plurality of tube bodies with different outer diameters, the inner cavity of the tube body is provided with inner holes 11 which are interconnected, and the saddle joint is composed of a first tube body 1, a second tube body 2, a third tube body 3 and a connecting end 9 from top to bottom; the outer diameter of the first tube body 1 is smaller than that of the second tube body 2, and a first conical surface 4 is provided between the first tube body 1 and the second tube body 2; the outer diameter of the second tube body 2 is smaller than that of the third tube body 3, and a second conical surface 5 is provided between the second tube body 2 and the third tube body 3; the inner and outer sides of the connecting end 9 are respectively provided with an inner conical surface and an outer conical surface, the inner conical surface is connected to the inner hole 11, and the port of the connecting end 9 is provided with a through-type arc-shaped concave surface matching the external pipe 10.

[0022] In this embodiment, a right-angled countersunk hole structure 6 is provided between the port and the inner conical surface of the connecting end 9; the outer conical surface of the connecting end 9 is composed of a third conical surface 7 and a fourth conical surface 8 connected to each other; the angles of the third conical surface 7 and the fourth conical surface 8 are different. In this embodiment, the angle between the fourth conical surface 8 and the horizontal plane is 30-45 degrees; the wall thickness of the arc-shaped concave surface of the connecting end 9 is 1.5-5.0 mm.

[0023] The above embodiments are limited to illustrating the concept and technical features of the utility model, and their purpose is to allow those skilled in the art to understand the technical solution and implementation method of the utility model, and they cannot limit the protection scope of the utility model. Any equivalent replacement or equivalent change made according to the technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A butt-welded short pipe saddle joint, which is composed of a plurality of pipe bodies with different outer diameters, wherein the inner cavities of the pipe bodies are provided with inner holes that are interconnected, and is characterized by: The saddle joint comprises a first tube body, a second tube body, a third tube body and a connecting end from top to bottom; The outer diameter of the first tube body is smaller than that of the second tube body, and a first conical surface is provided between the first tube body and the second tube body; The outer diameter of the second tube body is smaller than that of the third tube body, and a second conical surface is provided between the second tube body and the third tube body; The inner and outer sides of the connection end are respectively provided with an inner conical surface and an outer conical surface, the inner conical surface is connected to the inner hole, and the port of the connection end is provided with a penetrating arc-shaped concave surface matching the external pipe.

2. The butt-welded short pipe saddle joint according to claim 1 is characterized in that: A right-angle countersunk hole structure is provided between the port of the connecting end and the inner conical surface.

3. The butt-welded short pipe saddle joint according to claim 1 is characterized in that: The outer conical surface of the connecting end is composed of a third conical surface and a fourth conical surface connected to each other.

4. The butt-welded short pipe saddle joint according to claim 3 is characterized in that: The third tapered surface and the fourth tapered surface have different angles.

5. The butt-welded short pipe saddle joint according to claim 4 is characterized in that: The included angle between the fourth conical surface and the horizontal plane is 30-45 degrees.

6. The butt-welded short pipe saddle joint according to claim 1 is characterized in that: The wall thickness of the arc-shaped concave surface of the connecting end is 1.5-5.0 mm.

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